Multiple Branch

Multiple Branch: MPS, MRD, MPP

Multiple branch instructions are used to connect output coils to the left hand side of a contact.

Without these instructions, connections can only be made to the right hand side of the last contact.

For every MPS instruction, there must be a corresponding MPP instruction.

The last contact or coil circuit must connect to an MPP instruction.

MPS (Multiple Point Store) 

Function:

-This is used to start branching in a ladder. MPS stores the connection point of the ladder circuit so that further coil branches can recall the value later.

MRD (Multiple Read)

Function:

-This is used to relay branching in a ladder. MRD recalls or reads the previously stored connection point data and forces the next contact to connect to it.

MPP (Multiple Pop)

Function:

-This is used to finish branching in a ladder. MPP pops (recalls and removes) the stored connection point.

First, it connects the next contact, and then it removes the point from the temporary storage area.

Examples)

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